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接种乙肝疫苗是控制HBV感染的有效措施。血源乙肝疫苗（下称血源苗）在我国已应用10余年，近年来，国内已应用基因工程乙肝疫苗（下称基因苗）替代血源苗。为比较两种疫苗疗效，我们于19g7年5月～1998年6月观察了549名婴儿抗一HBS产生情况，现将结果报告如下。l方法1．1免疫方?
Inoculation of hepatitis B vaccine is an effective measure to control HBV infection. In recent years, the domestic application of genetically engineered hepatitis B vaccine (hereinafter referred to as gene vaccine) instead of blood seedlings. To compare the efficacy of the two vaccines, 549 infants were tested for anti-HBS production from 19 g7 to June 1998 and the results are reported below. l method 1.1 immune side?